Individual personnel may be cross-decked due to their required specialities being in need. Rarely, entire crews can be cross-decked to a newly commissioned ship from either a decommissioning vessel (e.g. from USCGC Bonham to USCGC Modoc), or a vessel undergoing prolonged repair or renovation. More commonly, a core group of experienced personnel may be cross-decked to a new ship to allow the vessel to come to full readiness more quickly. Generally, a move of this type will be between ships with similar missions, though not necessarily the same ship class. This can be seen as a means of propagating institutional knowledge.